A telescopic tool

Abstract

The present invention discloses a telescopic cutter, belonging to the technical field of cutters, aiming at overcoming the defect that the existing fish knives cannot be applicable to fish of different sizes. The cutter includes a handle and a blade. The handle includes a first housing and a second housing which are detachably connected. The blade is clamped between the first housing and the second housing. A plurality of limiting openings arranged horizontally are formed on the blade, and a limiting structure corresponding to the limiting openings is arranged on the handle. The limiting structure includes a locking position and an unlocking position. When the limiting structure is in the locking position, the blade is fixed on the handle. When the limiting structure is in the unlocking position, the blade can move back and forth relative to the handle. The telescopic cutter provided by the present invention can adjust the extending length of the blade, can be applicable to fish of different sizes, and improves the applicable range of the cutter.

Description

Technical Field

[0001] The present invention belongs to the technical field of cutting tools and relates to a telescopic cutting tool. Background Art

[0002] Common fish knife blades are non-detachable, and different fish knives are suitable for different fish sizes. There are unsafe factors when using a large-sized fish knife for a small fish, and it is laborious to cut a large-sized fish with a small-sized fish knife due to insufficient size. If you want to deal with fish of various sizes, you need to prepare more fish knives, which is rather inconvenient. Summary of the Invention

[0003] The present invention provides a telescopic cutting tool to solve the problems existing in the prior art, aiming to overcome the defect that the existing fish knives cannot be applicable to fish of different sizes.

[0004] The present invention is implemented as follows:

[0005] A telescopic cutting tool includes a handle and a blade. It is characterized in that the handle includes a first housing and a second housing which are detachably connected, the blade is clamped between the first housing and the second housing, the blade has a plurality of limiting openings arranged horizontally, the handle is provided with a limiting structure corresponding to the limiting openings, and the limiting structure includes a locking position and an unlocking position; when the limiting structure is in the locking position, the blade is fixed on the handle; when the limiting structure is in the unlocking position, the blade can move back and forth relative to the handle.

[0006] Preferably, the limiting structure includes a pressing piece fixed in the handle and a lock catch rotatably connected to the handle. The pressing piece has a buckle that can be inserted into the limiting opening; when the limiting structure is in the locking position, the lock catch tightly abuts the pressing piece so that the buckle is inserted into the limiting opening; when the limiting structure is in the unlocking position, the distance from the lock catch to the blade is greater than or equal to the thickness of the pressing piece plus the buckle.

[0007] Preferably, the pressing piece is an elastic piece. When the limiting structure is in the unlocking position, the buckle disengages from the limiting opening under the elastic force of the pressing piece.

[0008] Preferably, a knife rest is arranged in the handle. The knife rest has a sliding groove. The blade extends into the sliding groove and slides in the sliding groove when the limiting structure is in the unlocking position. The pressing piece is located on the knife rest.

[0009] Preferably, the tail of the blade has a limiting hook, and the handle or the knife rest has a blocking portion. When the blade extends out of the handle to the longest, the limiting hook abuts against the blocking portion.

[0010] Preferably, the limiting structure includes a button protruding from the handle, the button is provided with a locking rod which penetrates into the handle, and the locking rod has a locking block; when the limiting structure is in a locked position, the locking block is staggered with the limiting opening; when the limiting structure is in an unlocked position, the locking block is embedded in the limiting opening.

[0011] Preferably, an elastic member is arranged between the locking rod and the handle, and the elastic member provides elastic force for the locking rod so that the locking block is embedded in the limiting opening.

[0012] Preferably, the limiting opening is a limiting groove with an opening facing upward, and the limiting structure includes a locking member hinged on the handle, one end of the locking member has a locking hook, and an elastic member is arranged between the locking member and the handle, and the elastic force provided by the elastic member to the locking member enables the locking hook to be embedded in the limiting groove, and pressing or pulling the locking member can cause the locking hook to disengage from the limiting groove.

[0013] Preferably, the limiting groove is tooth-shaped to form a tooth groove, and a plurality of the tooth grooves are continuously distributed.

[0014] Preferably, the locking hook is a locking tooth matching the tooth groove, and the locking element has two locking teeth corresponding to two adjacent tooth grooves.

[0015] The telescopic knife provided by the present invention can adjust the extension length of the blade, can adapt to fish of different sizes, and improves the application range of the knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a tool in Embodiment 1;

[0017] Figure 2 It is a schematic diagram of a first cross-sectional structure of a cutting tool in Example 1;

[0018] Figure 3 This is a schematic cross-sectional view of the structure of the tool when locked in Embodiment 1;

[0019] Figure 4 This is a schematic cross-sectional view of the structure when the tool is unlocked in the first embodiment;

[0020] Figure 5 It is a second cross-sectional structural schematic diagram of the tool of Example 1;

[0021] Figure 6 This is a schematic diagram of the structure of the pressing sheet in the tool of Example 1;

[0022] Figure 7 It is a schematic cross-sectional view of the cutting tool with the blade anti-falling function in the first embodiment;

[0023] Figure 8 This is a schematic diagram of the blade structure of a cutting tool with a blade anti-drop function in Embodiment 1;

[0024] Figure 9 Schematic structural diagram of the tool in the second embodiment;

[0025] Figure 10 is Figure 9 A-A sectional view of;

[0026] Figure 11 Schematic structural diagram of the tool in the third embodiment;

[0027] Figure 12 Schematic structural diagram of the tool in the fourth embodiment.

[0028] Explanation of the reference numerals in the drawings: 100, handle; 110, first housing; 120, second housing; 130, blocking portion; 140, elastic member; 200, blade; 210, limiting opening; 211, limiting groove; 212, tooth groove; 220, limiting hook; 300, tool rest; 310, pressing piece; 311, buckle; 320, lock; 321, locking surface; 322, unlocking surface; 330, sliding groove; 410, button; 420, lock rod; 430, lock block; 510, locking member; 511, locking hook; 512, locking tooth. Detailed implementation manners

[0029] The following will further elaborate on the detailed implementation manners of the present invention in conjunction with the accompanying drawings of the embodiments, so that the technical solutions of the present invention are easier to understand and master. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Embodiment 1

[0031] This embodiment provides a telescopic tool, which can be used as a fish knife for gutting fish. As Figures 1-6 shown, the tool includes a handle 100 and a blade 200. The handle 100 includes a first housing 110 and a second housing 120 that are detachably connected. The blade 200 is clamped between the first housing 110 and the second housing 120. The blade 200 has a plurality of limiting openings 210 arranged horizontally. The plurality of limiting openings 210 means two or more, for example, five. The limiting opening 210 can be a groove structure or a hole structure. In this embodiment, a hole structure is adopted, that is, a plurality of holes are opened in the middle position of the blade 200 as the limiting openings 210. The handle 100 is provided with a limiting structure corresponding to the limiting openings 210. The limiting structure includes a locking position and an unlocking position; when the limiting structure is in the locking position, the blade 200 is fixed on the handle 100; when the limiting structure is in the unlocking position, the blade 200 can move back and forth relative to the handle 100.

[0032] Specifically, the limiting structure includes a pressing piece 310 fixed inside the handle 100 and a lock catch 320 rotatably connected to the handle 100. The pressing piece 310 is provided with a buckle 311 that can be embedded in the limiting opening 210. When the limiting structure is in the locked position, the lock catch 320 tightly presses against the pressing piece 310 to make the buckle 311 embedded in the limiting opening 210. When the limiting structure is in the unlocked position, the distance from the lock catch 320 to the blade 200 is greater than or equal to the thickness of the pressing piece 310 plus the buckle 311. Rotating the lock catch 320 can realize the switching of the limiting structure between the locked position and the unlocked position. When the lock catch 320 rotates to Figure 3 the position, the locking surface 321 of the lock catch 320 tightly presses against the pressing piece 310, so that the buckle 311 on the pressing piece 310 is embedded into the limiting opening 210, and the blade 200 cannot move back and forth under the limitation of the buckle 311 to achieve locking, that is, the limiting structure is in the locked position. When the lock catch 320 rotates to Figure 4 the position, the unlocking surface 322 of the lock catch 320 faces the pressing piece 310. Since the distance from the unlocking surface 322 to the blade 200 is greater than or equal to the thickness of the pressing piece 310 plus the buckle 311, the buckle 311 can move towards the lock catch 320 and disengage from the limiting opening 210. There can be a gap between the unlocking surface 322 and the pressing piece 310, or they can be in contact with each other. At this time, the limiting structure is in the unlocked position, and the blade 200 can move back and forth relative to the handle 100 to adjust the extended length. After the adjustment is in place, by operating the lock catch 320, the limiting structure returns to the locked state as shown in Figure 3 .

[0033] The pressing piece 310 is an elastic piece. When the limiting structure is in the unlocked position, the buckle 311 disengages from the limiting opening 210 under the elastic force of the pressing piece 310, which can improve the smoothness during the forward and backward movement of the blade 200 and reduce the jamming phenomenon. In other alternative embodiments, the buckle 311 is set to be arc-shaped. When the limiting structure is in the unlocked position, even if the pressing piece 310 is not elastic, the buckle 311 can be made to disengage from the limiting opening 210 by pushing and pulling the blade 200.

[0034] As Figures 2-5 shown, a tool rest 300 is arranged inside the handle 100. The tool rest 300 has a sliding groove 330. The blade 200 extends into the sliding groove 330 and slides in the sliding groove 330 when the limiting structure is in the unlocked position. The pressing piece 310 is located on the tool rest 300. The tool rest 300 can be an integral structure or a split structure composed of two frame bodies. When the tool rest 300 is a split structure, the gap between the two frame bodies forms the sliding groove 330, and the pressing piece 310 is located on one of the frame bodies.

[0035] As Figures 7-8As shown, the tail of the blade 200 has a limit hook 220, and the handle 100 has a blocking portion 130. When the blade 200 extends out of the handle 100 to the longest extent, the limit hook 220 abuts against the blocking portion 130, which can prevent the blade 200 from detaching from the handle 100. In other alternative embodiments, the blocking portion 130 can also be located on the tool rest 300.

[0036] Embodiment Two

[0037] The main difference between this embodiment and Embodiment One lies in the limit structure.

[0038] Specifically, as Figures 9-10 shown, the limit structure includes a button 410 protruding from the handle 100. A lock rod 420 penetrating into the handle 100 is arranged on the button 410, and a lock block 430 is arranged on the lock rod 420; when the limit structure is in the locked position, the lock block 430 is offset from the limit opening 210; when the limit structure is in the unlocked position, the lock block 430 is embedded in the limit opening 210. An elastic member 140 is arranged between the lock rod 420 and the handle 100, and the elastic force provided by the elastic member 140 for the lock rod 420 enables the lock block 430 to be embedded in the limit opening 210. The elastic member 140 is a spring.

[0039] Press the button 410, and the lock rod 420 moves against the elastic force of the elastic member 140, thereby driving the lock block 430 to move out of the limit opening 210. At this time, the limit structure is in the unlocked position, and the blade 200 can move back and forth relative to the handle 100. Release the button 410, and the lock rod 420 moves under the elastic force of the elastic member 140, driving the lock block 430 to be embedded into the limit opening 210. At this time, the limit structure is in the locked position, and the lock block 430 forms a constraint on the blade 200 in the limit opening 210, and the blade 200 cannot move back and forth.

[0040] The other structures and effects of this embodiment are the same as those of Embodiment One, and will not be elaborated here.

[0041] Embodiment Three

[0042] The main difference between this embodiment and Embodiment One lies in the limit structure.

[0043] Specifically, the limit opening 210 is a limit groove 211 with an upward opening. There are four limit grooves 211. The limit structure includes a lock member 510 hinged on the handle 100. One end of the lock member 510 has a lock hook 511. An elastic member 140 is arranged between the lock member 510 and the handle 100, and the elastic force provided by the elastic member 140 for the lock member 510 enables the lock hook 511 to be embedded in the limit groove 211. Pressing or lifting the lock member 510 can cause the lock hook 511 to disengage from the limit groove 211. The elastic member 140 is a spring plate.

[0044] The locking member 510 can be partially exposed outside the handle 100 for operation. For example, the rear section of the hinge joint between the locking member 510 and the handle 100 is exposed outside the handle 100. By pressing this rear section, the locking member 510 swings against the elastic member 140, causing the end with the locking hook 511 to tilt upwards. The locking hook 511 disengages from the limiting groove 211. At this time, the limiting structure is in the unlocked position, and the blade 200 can move back and forth. After release, under the elastic force of the elastic member 140, the locking hook 511 engages with the limiting groove 211. At this time, the limiting structure is in the locked position.

[0045] In other alternative embodiments, the locking member 510 can also be provided on the side of the handle 100, and the limiting opening 210 can still be a hole-like structure.

[0046] The other structures and effects of this embodiment are the same as those of the first embodiment, and will not be elaborated here.

[0047] Embodiment 4

[0048] The difference between this embodiment and the third embodiment lies in the structures of the limiting opening 210 and the locking hook 511.

[0049] Specifically, the limiting opening 210 is a limiting groove 211. The limiting groove 211 is in a tooth shape to form tooth grooves 212. A plurality of tooth grooves 212 are continuously distributed, and the adjacent tooth grooves 212 are spaced by the size of one tooth groove 212. In this way, the telescoping of the blade 200 can achieve fine adjustment, and it can better adapt to fish of different sizes. The locking hook 511 is a locking tooth 512 that matches the tooth groove 212. There are two locking teeth 512 on the locking member 510 corresponding to two adjacent tooth grooves 212, so that the locking is more stable.

[0050] The other structures and effects of this embodiment are the same as those of the third embodiment, and will not be elaborated here.

Claims

1. A telescopic tool, comprising a handle (100) and a blade (200), characterized in that, The handle (100) includes a first housing (110) and a second housing (120) that are detachably connected. The blade (200) is clamped between the first housing (110) and the second housing (120). The blade (200) has a plurality of limiting ports (210) arranged horizontally. The handle (100) is provided with a limiting structure corresponding to the limiting ports (210). The limiting structure includes a locking position and an unlocking position. When the limiting structure is in the locking position, the blade (200) is fixed to the handle (100). When the limiting structure is in the unlocking position, the blade (200) can move back and forth relative to the handle (100). The limiting structure includes a pressing piece (310) fixed inside the handle (100) and a locking buckle (320) rotatably connected to the handle (100). The pressing piece (310) has a buckle (311) that can be inserted into the limiting port (210). When the limiting structure is in the locking position, the locking buckle (320) presses against the pressing piece (310) to insert the buckle (311) into the limiting port (210). When the limiting structure is in the unlocking position, the distance from the locking buckle (320) to the blade (200) is greater than or equal to the thickness of the pressing piece (310) plus the buckle (311). The pressing piece (310) is an elastic piece. When the limiting structure is in the unlocking position, the buckle (311) disengages from the limiting port (210) under the elastic force of the pressing piece (310). A tool rest (300) is arranged inside the handle (100). The tool rest (300) has a sliding groove (330). The blade (200) extends into the sliding groove (330) and slides in the sliding groove (330) when the limiting structure is in the unlocking position. The pressing piece (310) is located on the tool rest (300). The tail of the blade (200) has a limiting hook (220). The handle (100) or the tool rest (300) has a blocking portion (130). When the blade (200) extends out of the handle (100) to the longest extent, the limiting hook (220) abuts against the blocking portion (130).

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